Product Details | PRESSURE AND TEMPERATURE RELIEF VALVE

4820-00-061-4789 A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also VALVE, SAFETY RELIEF and VALVE, REGULATING. TEMPERATURE.

Part Alternates: 340, 4820-00-061-4789, 00-061-4789, 4820000614789, 000614789

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1961 00-061-4789

Drawings & Photos | NSN 4820-00-061-4789


Demand History | NSN 4820-00-061-4789

Part Number Request Date QTY Origin
340 2020-02-51 6 US

Cross Reference | NSN 4820-00-061-4789

Part Number Cage Code Manufacturer
340 79227 WATTS REGULATOR CO

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Technical Data | NSN 4820-00-061-4789

Characteristic Specifications
BODY STYLE A7 ANGLE
BODY MATERIAL BRONZE
SEAT MATERIAL BRONZE
FLOW CONTROL DEVICE DISK, FLAT, TOP AND BOTTOM GUIDED
FLOW CONTROL DEVICE MATERIAL SILICON
STEM MATERIAL BRONZE
END CONNECTION QUANTITY 2
FIRST END CONNECTION TYPE THREADED INTERNAL PIPE
FIRST END STYLE DESIGNATOR G11 PLAIN
FIRST END NOMINAL PIPE SIZE ACCOMMODATED 1.500 INCHES
FIRST END THREAD DIRECTION RIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST END IDENTICAL
TEMP ADJUSTABILITY NOT ADJUSTABLE
MEDIA FOR WHICH DESIGNED WATER, FRESH
TEMP RATING 200.0 DEG FAHRENHEIT 210.0 DEG FAHRENHEIT
VALVE DISCHARGE FLOW RATE NOT RATED
BULB LENGTH 1.000 INCHES NOMINAL
BULB DIAMETER ANY ACCEPTABLE
TEMP CONTROL DEVICE TYPE THERMOSTATIC
OPENING PRESSURE SETTING 125.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE NOT RATED
FURNISHED ITEMS EMERGENCY OPENING DEVICE

Restrictions/Controls & Freight Information | NSN 4820-00-061-4789

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4820-00-061-4789

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each